Portion of a golf club head



FIG. 1 is a bottom plan view of a portion of a golf club head showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a bottom perspective view thereof; and,

FIG. 4 is a second bottom perspective view thereof.

The broken lines immediately adjacent to the claimed region form unclaimed boundaries of the design. The broken line showing of the two wedge-shaped elements and the indicia within the claimed region and the remainder of the golf club head is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a golf club head, as shown and described. 